If he is viewed as the only hope of defeating Giuliani, yes.
At least one can rationalize that Romney is a Mormon and actually really is a social conservative.
I'd trust Romney to keep his word far more than Giuliani.
Ya’ll forget George W. Bush said the same thing..
(look I don’t hate our President; He had done some good things: Tax Cuts, Supreme Court Justices, War on Terror, etc), but he has betrayed Ronald Reagan Conservatives, Evangelicals, and many other stripes of Conservatives). If you want more of ‘the same’ vote Mitt!